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Does buying above the 200-day EMA actually work?

A computed answer — not an opinion. Here's what nearly two decades of honest data say.

77OUT OF 100
PLAUSIBLE BUT FRAGILE

There may be something here, but it isn't robust. Don't size into it yet.

The honest verdict

We ran buying above the 200-day EMA through an honest backtest — nearly two decades of survivorship-free NIFTY & BANKNIFTY data, out-of-sample, with real costs. The verdict: 76.8/100 — plausible but fragile. There may be something here, but it isn't robust. Don't size into it yet.

Why it scored 77

Here's where it breaks:

How we tested it

Five statistical tests, no mercy: out-of-sample decay (is the edge curve-fit?), Monte-Carlo robustness (is it just luck?), real cost & slippage survival, survivorship-bias exposure, and sample-size adequacy. Run on NIFTY 50 and BANKNIFTY — survivorship-free by construction, the most honest data available — across roughly two decades. Rules are read at each day's close and filled the next open, so the strategy can never peek at the bar it trades on.

76.8/100
Honesty score
49
Trades tested
49%
Win rate
NIFTY/BANKNIFTY · ~2 decades
Data

See the full breakdown — free

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Frequently asked

Is buying above the 200-day EMA profitable?

On a true, survivorship-free test (76.8/100, plausible but fragile), buying above the 200-day EMA is fragile. A backtest looking profitable is not the same as a strategy being real — most aren't. Test your own version free at The Honest Quant.

Does buying above the 200-day EMA work on the NIFTY?

This verdict was computed on NIFTY 50 and BANKNIFTY index data (survivorship-free) over nearly two decades. It scored 76.8/100 — plausible but fragile.

Is buying above the 200-day EMA overfit?

Our overfitting test checks how much of the edge survives out-of-sample. See the full breakdown — and run your own parameters — in the lab.

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Educational, not financial advice. An honest backtest score measures whether a result survives statistical scrutiny — it does not predict future profit, and is not a buy or sell signal. · About · FAQ · All strategies